Railroad crossing gate



Aug. 9, 1932.

M. J. FARRELL ET AL RAILROAD CROSSING GATE Filed Jan. 29, 1931 4Sheets-Sheet 1 I nveniors Q By A tlomey Aug. 9, 1932. M. J. FARRELL ETAL RAILROAD CROSSING GATE Filed Jan. 29, 4 Sheets-Sheet 2 Inuentnrslfz'a/zae/ 1 34771 72 {5 71 i'affaranz' Allomey Aug. 9, 1932- M. ,1.FARRELL ET AL 1,371,167

RAILROAD CROSS ING GATE Filed Jan. 29. 1931 4Sheets-Sheet s I Q- m I rfizz /Jae; J arreiz Ia]? 'iafferanz' A Home y Inventors 1932 M. J.FARRELL ET AL 1,871,167

RAILROAD cnossme GATE Filed Jan. 29, 1951 4 Sheets-Sheet 4 A tlofnegPatented Aug. 9, 1932 UNITED STATS TENT". FFCE RAILROAD CROSSING GATEMICHAEL J. FARRELL AND LALLY STAFFARO'NI, OF SOB-AN TON, PENNSYLVANIAApplication filed January 29, 1921.. Serial No. 512,166.

This invention relates to new and useful improvement in grade crossinggates, and more particularly to a gate which will be automatic inoperation. The principal object of this invention is to provide anautomatic block operated gate for railroad crossings.

Still another important object of the invention is to provide a railroadgrade crossing gate wherein means are provided for preventing thetrapping of vehicles on the tracks, and to prevent injury to vehiclesshould the gate descend upon a vehicle.

These and numerous other important objects and advantages of theinvention will become apparent to the reader of the followingspecification and claims.

In the drawings Figure 1 represents a side elevational view of the novelgate structure, one of which is located at each side of the trackcrossing.

Fig. 2 represents a top plan view of the gate structure shown in Fig. 1,with the signals removed.

Fig. 3 represents a vertical sectional view through one post and throughone of the swingable sections of the gate shown in Fig. 1. V

Fig. 4: represents a horizontal sectional view taken substantially onthe line 55 of Fig. 3.

Fig. 5 represents a vertical sectional view through one of the gateposts to show the switch devices.

Fig. 6 represents a fragmentary detailed sectional view of the signalpost type of gate, the same being a modification of the form of theinvention shown in Fig. 1.

Fig. 7 represents a perspective view of the signal box shown in Fig. 1.

Fig. 8 represents a horizontal sectional View looking downwardly, andshowing the drive means for the gates at both sides of the crossing.

Fig. 9 represents a horizontal sectional view looking downwardly, andshowing the drive means for the gates at'both sides of the,

crossing, and showing individual motors for the several posts of thegates.

Referring to the drawings wherein like numerals designate like parts, itcan be seen in Fig. 1, that the double type or dual post type gate shownin Fig. 3, includes the hollow posts 5--5, suitably supported inconcrete recess 6. Within each of these posts 5 and journalledthroughbearings 7-7 is the screw shaft 8. The lower end of each of these screwshafts is provided'with a bevelledgear 9. In the form of drive meansshown in Fig. 8, a shaft 10 connects the screws 8 by way of the bevelgears 11, at one side of the crossing'while a shaft 12 connects thescrews 8 on the posts at the opposite side of the crossing by way of thebevel gears 13.

The shafts 10 and 12 are connected together by sprocket and chainconnections 14, and an electric motor 15 is employed for driving theshaft 10 directly and through the chain 'con-. nection 1 4, the shaft 12is driven in unison. In Fig. 9, the bevelled gears 9' of the screwshafts 8 are in mesh with beveled gears 16 which are located onarmature-shaftsof independent motors 17. Each of the shafts8 is drivenby an independent electric motor 17. Now referring again to Fig. 3, itcan be seen (refer also to Fig. 1) that each of the posts 5 has a gatesection 18 carried thereby. A pair. of'fol'lowers 1919 are feedableionthe shaft'8 and the gate section 18 is swing ably connectedto thefollowers 19--19 by the hinged I connections 20, which permits the gatesection to swing only in an outward direction. i Thus a vehicle trappedbetween the gates and the opposite side of the crossing can travelthrough the gates, yet no vehicle can passthrough the gates from theapproach sides thereof. The gate section 18 includes arectangular frameon which issupport'ed the electric bell 21 and suitable fabrications 22.A pair of normally closed switches 23 -23 are-located on each gatesection 18 and as is clearly shown in Fig. 3, a U-shaped member 24depends from the gate section and carries a resilient buffer 25, on thelower portion thereof. 7

The upper end portions of the U-shaped member are slidably disposed thruthe lower rail of the gate section 18 and are maintained in a positionby the spring 25 disengaged from the switches 2323.' Obviously,

vided foreach walk. Thebarrierrincludes1 a rectangular-shaped frame fromwhich the legs 2727 extend. These legs-are provided= with threadedopenings, through which the shaft 8 extends and with openings 28 throughwhich, the.- Web; 23 extends. I

As isapparent inEig. 3, one side of the post 5;;is provided; with a.slot- 80 while the othenopppsiteside of the post is provided with; agslot 31. A Within the slots are arranged; the endless ;webs..29, the..w,eb in .the' slot 30 beirig seei ired; at its.0utside portion to thebarrier 26 wh-iletheotherweb in the slot 31 is lseeured at its outside.portion to the gate 7 se tion:

, Qbyiously,; thesewebs serve togprevent rain snew-from entering theinterior of the post,:. hus.-,pxo ectingq e k g; p s of the .gatea o n rd t e te iorat g ondition Asis wn s;-.- ah 32 bridges th pos sof iachaga structure n spendedi rom th bar 132; s he ig l t enerallyefined oyxm meral 3: h s i -eel i ni is i-vi ed in oitwo compa m nts,

.. hea pner nn9arma en ing pr v de wi nsesiot aired sCO QfiZ Ld the lowr lenses of he lew rz omn rtment being. f g een colo Meton;r versing-swiche fil and .35. are. 10- catedw thi i-the pper. and o erz ncls of hep.Q t-. .f ngage emti y. eaipperanc lowermest foll wers 9 The. switheshre 1o: C'3Q la 1i QXS.- 6' having i able closure through}, which;aecess be had to the witehfiee Aneth rs oxfiuat he l w rgend t ae rpest,ho sesaswieh 8 whiehrisz o mplqeedrn'hen:atr ns epswithintheblock. eaherp rp 'se t n ding 1: for-z theropn ati-Qes, wh hitisnot a es ary t atth -gat e t oohe e n- F gs -,showsa ghtly modifie fo mo e mv et eh, wherin i n fpo tv -f; hig -te s eliminated, and an additional ;section;;l 8;is ieesdlyv o nee edz s t. o he fir i en 8. The uppl menta ct nr 8 whis,enti rely supported bythe first section 18, also, carries; a. pair,of f switehes similar to witeh s.- i ?z fi l ge .h d t e-' p d et ate2i:

I top? sigp, 39 is located on; the fabrication 2.210 ho h-.theitype figate h li R g- 1, and the type-of gate hOWH i iFt g-z he. orege ge peeitien ets r hw he invention in specificrtermfi, it is tojbe ;undertoedaha i umer u hane sa n the hare i e-andim efi slney. w sw d, to with:

the-said rollers, one part of the said web being secured to the gate.

2'. In combination, an elevating gate, a depending U-shaped member,springs on the leg portions of the U-shaped member for main:

taining the U-shaped member extended downwardly, and a switch on thegate operated by one leg of the U-shaped member when the U-shaped memberis forced upwardly against the tension of the spring.

3. A railroad grade crossing gatecomprising a hollow post, a gatestructure, said post being provided with a slot in one side thereof,means within the postfor lifting and lowering the said gate, aconnection through the slot/between, the said means and'the gate, avertically disposed endless web operating in the slot longitudinallythereof, said web bein gsecured to the gate to travel therewith.

In testimony whereof we afiix' our signa tures.

MICHAEL J. FARRELL. LALLY. STAFFARONI.

